autogen.sh not expanding some variables

[Skip Montanaro <skip pobox com>]

After running autogen.sh on the gtk+ cvs source, I am left with a top-level
Makefile containing the following unexpanded variables:

    host_alias = @host_alias@
    AS = @AS@
    DLLTOOL = @DLLTOOL@
    GENCAT = @GENCAT@
    GT_NO = @GT_NO@
    GT_YES = @GT_YES@
    INCLUDE_LOCALE_H = @INCLUDE_LOCALE_H@
    OBJDUMP = @OBJDUMP@
    l = @l@

When I try to make, I get an error message about not being able to find
@AS  

I zapped all my files and updated from CVS again, but encounter the same
problem.  Autogen.sh's output is not perfectly clean, but I have no clue
what the problem might be.  Its output is:

    I am going to run ./configure with no arguments - if you wish 
    to pass any to it, please specify them on the ./autogen.sh command line.
    autoheader: error: shell error while sourcing /tmp/ahR6lLVI/traces.sh
    configure.in: 89: required file `./config.h.in' not found
    demos/gtk-demo/Makefile.am:60: gtk_demo_SOURCES includes configure substitution ` STRIP_BEGIN@'
    demos/gtk-demo/Makefile.am:60: gtk_demo_SOURCES includes configure substitution ` STRIP_END@'
    tests/Makefile.am: EXTRA_DIST must be set with `=' before using `+='
    docs/Makefile.am: EXTRA_DIST must be set with `=' before using `+='
    docs/faq/Makefile.am: EXTRA_DIST must be set with `=' before using `+='
    docs/tutorial/Makefile.am: EXTRA_DIST must be set with `=' before using `+='
    gdk-pixbuf/Makefile.am:94: libpixbufloader_xbm_la_LDFLAGS multiply defined in condition TRUE
      libpixbufloader_xbm_la_LDFLAGS (User, where = 94) =
      {
	TRUE => -version-info 1:0:0 -module
      }
    gdk-pixbuf/Makefile.am:214: libgdk_pixbuf_1_3_la_DEPENDENCIES was already defined in condition TRUE, which implies condition BUILD_DYNAMIC_MODULES_FALSE TRUE
      libgdk_pixbuf_1_3_la_DEPENDENCIES (User, where = 214) =
      {
	TRUE => $(builtin_objs)
      }
    gdk-pixbuf/Makefile.am:214: libgdk_pixbuf_1_3_la_DEPENDENCIES was already defined in condition TRUE, which implies condition BUILD_DYNAMIC_MODULES_TRUE TRUE
      libgdk_pixbuf_1_3_la_DEPENDENCIES (User, where = 214) =
      {
	BUILD_DYNAMIC_MODULES_FALSE TRUE => pixops/libpixops.la
	TRUE => $(builtin_objs)
      }
    automake: gdk-pixbuf/pixops/Makefile.am: Assembler source seen but `ASFLAGS' not defined in `configure.in'
    gdk/Makefile.am: MAINTAINERCLEANFILES must be set with `=' before using `+='
    gdk/Makefile.am: EXTRA_HEADERS must be set with `=' before using `+='
    gdk/Makefile.am:138: libgdk_linux_fb_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gdk/Makefile.am:138: libgdk_linux_fb_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gdk/Makefile.am:128: libgdk_nanox_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gdk/Makefile.am:128: libgdk_nanox_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gdk/Makefile.am:118: libgdk_x11_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gdk/Makefile.am:118: libgdk_x11_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/Makefile.am: MAINTAINERCLEANFILES must be set with `=' before using `+='
    gtk/Makefile.am: EXTRA_HEADERS must be set with `=' before using `+='
    gtk/Makefile.am: EXTRA_DIST must be set with `=' before using `+='
    gtk/Makefile.am: CLEANFILES must be set with `=' before using `+='
    gtk/Makefile.am:509: libgtk_linux_fb_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gtk/Makefile.am:509: libgtk_linux_fb_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/Makefile.am:509: libgtk_linux_fb_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gtk/Makefile.am:509: libgtk_linux_fb_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/Makefile.am:509: libgtk_linux_fb_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gtk/Makefile.am:509: libgtk_linux_fb_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/Makefile.am:504: libgtk_nanox_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gtk/Makefile.am:504: libgtk_nanox_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/Makefile.am:504: libgtk_nanox_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gtk/Makefile.am:504: libgtk_nanox_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/Makefile.am:504: libgtk_nanox_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gtk/Makefile.am:504: libgtk_nanox_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/Makefile.am:499: libgtk_x11_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gtk/Makefile.am:499: libgtk_x11_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/Makefile.am:499: libgtk_x11_1_3_la_SOURCES includes configure substitution ` STRIP_BEGIN@'
    gtk/Makefile.am:499: libgtk_x11_1_3_la_SOURCES includes configure substitution ` STRIP_END@'
    gtk/stock-icons/Makefile.am: CLEANFILES must be set with `=' before using `+='
    configure.in:25: /usr/bin/m4: Non-numeric argument to built-in `divert'
    configure.in:97: warning: AC_CANONICAL_HOST invoked multiple times
    configure.in:101: /usr/bin/m4: Non-numeric argument to built-in `divert'
    configure.in:158: warning: AC_COMPILE_IFELSE was called before AC_ISC_POSIX
    ... bunch of configure messages elided ...
    configure: creating ./config.status
    ... bunch of config.status messages elided ...
    config.status: error: cannot find input file: config.h.in

    Now type 'make' to compile Gtk+.

I have automake 1.4g, autoconf 2.50a and libtool 1.4 installed.  Any
ideas what my problem is?

Thx,

-- 
Skip Montanaro (skip pobox com)
(847)971-7098